Improved Screencast mode

[dyc3]

While fixing #68849, we began discussing how we could further improve the screencast mode. Some of the things we want to add include:

• Displaying counters for repeat key presses
• Remove spaces between letters/numbers/symbols
• Have letters respect the case they were typed in
• More settings for screencast mode

I'd love to take this up, since I've already been working on screencast mode.

[vscodebot]

(Experimental duplicate detection)
Thanks for submitting this issue. Please also check if it is already covered by an existing one, like:

• Allowing a user to change screencast mode overlay position and height/width from settings. (#69314)
• Screencast Mode - text not resetting (#67965)
• Add setting to only display control characters (#69296)
• Screencast mode shows multiple words "Escape" (#68916)

[joaomoreno]

Will close this as out of scope, thanks for the ideas anyway.